Feedback Linearization of Hysteretic Thermoelastic Dynamics of Shape Memory Alloy Actuators with Phase Transformations

Lin Xiang Wang; Rong Liu; Roderick Melnik

doi:10.4028/www.scientific.net/AMR.47-50.69

Paper Titles

A Study on the Problems with Long-Term Bridge Monitoring Systems, and Suggested Solutions
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Sound Transmission through Lightweight All-Metallic Sandwich Panels with Corrugated Cores
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Development of Miniaturized Piezoelectric Multimode Transducer for Projection Purpose
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Macroscopic Differential Model for Hysteresis and Butterfly-Shaped Behavior in Ferroelectric Materials
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Feedback Linearization of Hysteretic Thermoelastic Dynamics of Shape Memory Alloy Actuators with Phase Transformations
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Characteristics of BNT Films Synthesized by a Hydrothermal Method
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Electromagnetic Wave Shielding and Fire Retardant Multifunctional Polymer Composites
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Multifunctional Polymer Composites for "Intellectual" Structures: Present State, Problems, Future
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Monitoring Vibrating Structures Using PZT Impedance Transducers
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Feedback Linearization of Hysteretic Thermoelastic Dynamics of Shape Memory Alloy Actuators with Phase Transformations

Abstract:

In the current paper, a macroscopic differential model for the hysteretic dynamics in shape memory alloy actuators is constructed by using the modified Landau theory of the first order phase transformation. An intrinsic thermo-mechanical coupling is achieved by constructing the free energy as a function depends on both mechanical deformation and the material temperature. Both shape memory and pseudoelastic effects are modeled. The hysteretic dynamics is linearized by introducing another hysteresis loop via nonlinear feedback strategy, which cancels the original one.